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Real-Time Point Positioning Performance Evaluation of Single-Frequency Receivers Using NASA's Global Differential GPS SystemThis paper evaluates the performance of a single-frequency receiver using the 1-Hz differential corrections as provided by NASA's global differential GPS system. While the dual-frequency user has the ability to eliminate the ionosphere error by taking a linear combination of observables, the single-frequency user must remove or calibrate this error by other means. To remove the ionosphere error we take advantage of the fact that the magnitude of the group delay in range observable and the carrier phase advance have the same magnitude but are opposite in sign. A way to calibrate this error is to use a real-time database of grid points computed by JPL's RTI (Real-Time Ionosphere) software. In both cases we evaluate the positional accuracy of a kinematic carrier phase based point positioning method on a global extent.
Document ID
20070034963
Acquisition Source
Jet Propulsion Laboratory
Document Type
Preprint (Draft being sent to journal)
External Source(s)
Authors
Muellerschoen, Ronald J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Iijima, Byron
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Meyer, Robert
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bar-Sever, Yoaz
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Accad, Elie
(Raytheon Information Technology and Scientific Services Pasadena, CA, United States)
Date Acquired
August 24, 2013
Publication Date
September 23, 2004
Subject Category
Communications And Radar
Meeting Information
Meeting: Ion GNSS 2004
Location: Long Beach, CA
Country: United States
Start Date: September 20, 2004
End Date: September 23, 2004
Distribution Limits
Public
Copyright
Other
Keywords
internet-based global differential GPS (IGDG)
global positioning system (GPS)

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